- Definitions|2
- Thesaurus|716
- Abbreviations|0
135 entries under adjective topic. ×
| staunch(strong, firm, true, fixed) | |
| steely | |
| sure(firm, true, fixed, resolute) | |
| tenacious(firm, true, fixed, constant) | |
| tended(secure, safe, snug, intact) | |
| undamaged(secure, safe, snug, intact) | |
| unharmed(secure, safe, snug, intact) | |
| unhurt(secure, safe, snug, intact) | |
| uninjured(secure, safe, snug, intact) | |
| unmolested(secure, safe, snug, intact) | |
| unscathed(secure, safe, snug, intact) | |
| unthreatened(secure, safe, snug, intact) | |
| untroubled | |
| vindicated(secure, safe, snug, intact) | |
| warm | |
| watched(secure, safe, snug, intact) | |
| watertight | |
| adamant | |
| adjusted(safe, sheltered, protected, locked) | |
| anchored(safe, sheltered, protected, locked) |
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| APA | Smart Define. (2015). impregnable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/impregnable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "impregnable thesaurus" https://smartdefine.org/impregnable/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, impregnable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/impregnable/thesaurus/synonyms>. |
| MLA | Smart Define. "impregnable thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/impregnable/thesaurus/synonyms> |